Microfluidic whispering gallery mode optical sensors for biological applications

Y Wang, S Zeng, G Humbert… - Laser & Photonics …, 2020 - Wiley Online Library
Whispering gallery mode (WGM) resonators have been exploited as a highly sensitive and
efficient sensing technique in the past few years. They offer the advantages of ultrahigh …

Optical whispering-gallery-mode microbubble sensors

X Zhao, Z Guo, Y Zhou, J Guo, Z Liu, Y Li, M Luo, X Wu - Micromachines, 2022 - mdpi.com
Whispering-gallery-mode (WGM) microbubble resonators are ideal optical sensors due to
their high quality factor, small mode volume, high optical energy density, and …

Machine learning-assisted high-accuracy and large dynamic range thermometer in high-Q microbubble resonators

H Chen, Z Wang, Y Wang, C Yu, R Niu, CL Zou, J Lu… - Optics …, 2023 - opg.optica.org
Whispering gallery mode (WGM) resonators provide an important platform for fine
measurement thanks to their small size, high sensitivity, and fast response time …

Ultrasound sensing with optical microcavities

X Cao, H Yang, ZL Wu, BB Li - Light: Science & Applications, 2024 - nature.com
Ultrasound sensors play an important role in biomedical imaging, industrial nondestructive
inspection, etc. Traditional ultrasound sensors that use piezoelectric transducers face …

Photostability of contrast agents for photoacoustics: The case of gold nanorods

L Cavigli, BN Khlebtsov, S Centi, NG Khlebtsov, R Pini… - Nanomaterials, 2021 - mdpi.com
Plasmonic particles as gold nanorods have emerged as powerful contrast agents for critical
applications as the photoacoustic imaging and photothermal ablation of cancer. However …

Micropascal-sensitivity ultrasound sensors based on optical microcavities

H Yang, X Cao, ZG Hu, Y Gao, Y Lei, M Wang… - Photonics …, 2023 - opg.optica.org
Whispering gallery mode (WGM) microcavities have been widely used for high-sensitivity
ultrasound detection, owing to their optical and mechanical dual-resonance enhanced …

Fast Switching Acoustic Sensor With Ultrahigh Sensitivity and Wide Dynamic Response Range Based on Ultrahigh-Q CaF2 Resonator

T Xing, E Xing, T Jia, J Li, J Rong… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
Whispering gallery mode (WGM) crystalline resonator is an excellent platform for acoustic
sensing because the quality (Q) factor of 10 11 can theoretically increase sensitivity by more …

Photoacoustic Multispectral Elastography Based on the Photoacoustic Oscillation Effect for Microelastomers in Deep Tissue

Y Liu, C Tao, X Liu - Physical Review Applied, 2023 - APS
The detection of microelastomers in deep tissue has significant biomedical value. However,
elastography of microelastomers is still limited to superficial tissues. Here, we propose …

An optofluidic dye concentration detector based on the pulsed photoacoustic effect

K Roy, A Thomas, S Paul, A Ashok… - Microfluidics …, 2021 - spiedigitallibrary.org
We report the development of an opto-acousto-fluidic platform by combining an illumination
source in the form of a pulsed laser, a microfluidic channel, and an ultrasound transducer to …

A PMUT based photoacoustic system as a microfluidic concentration detector

K Roy, V Shastri, A Kumar, J Rout, I Isha… - … and Sensing 2022, 2022 - spiedigitallibrary.org
We report on the development of a novel piezo-MEMS-based optofluidic platform to detect
the concentration of various species dissolved in a fluid. This platform employs piezoelectric …